spi: qup: Add DMA capabilities

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This patch adds DMA capabilities to the spi-qup driver.  If DMA channels are
present, the QUP will use DMA instead of block mode for transfers to/from SPI
peripherals for transactions larger than the length of a block.

Signed-off-by: Andy Gross <agross@codeaurora.org>
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Reviewed-by: Ivan T. Ivanov <iivanov@mm-sol.com
Signed-off-by: Mark Brown <broonie@kernel.org>

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Andy Gross 2015-03-04 12:02:05 +02:00 • committed by Mark Brown

parent c517d838eb

commit 612762e82a

2 changed files with 312 additions and 32 deletions

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8

Documentation/devicetree/bindings/spi/qcom,spi-qup.txt

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336

drivers/spi/spi-qup.c

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